operator==,!=,<,<=,>,>=(std::basic_string_view) (3) - Linux Manuals
operator==,!=,<,<=,>,>=(std::basic_string_view): operator==,!=,<,<=,>,>=(std::basic_string_view)
Command to display operator==,!=,<,<=,>,>=(std::basic_string_view) manual in Linux: $ man 3 operator==,!=,<,<=,>,>=(std::basic_string_view)
NAME
operator==,!=,<,<=,>,>=(std::basic_string_view) - operator==,!=,<,<=,>,>=(std::basic_string_view)
Synopsis
Defined in header <string_view>
template< class CharT, class Traits >
constexpr bool operator==( basic_string_view <CharT,Traits> lhs, (1) (since C++17)
basic_string_view <CharT,Traits> rhs ) noexcept;
template< class CharT, class Traits >
constexpr bool operator!=( basic_string_view <CharT,Traits> lhs, (2) (since C++17)
basic_string_view <CharT,Traits> rhs ) noexcept;
template< class CharT, class Traits >
constexpr bool operator<( basic_string_view <CharT,Traits> lhs, (3) (since C++17)
basic_string_view <CharT,Traits> rhs ) noexcept;
template< class CharT, class Traits >
constexpr bool operator<=( basic_string_view <CharT,Traits> lhs, (4) (since C++17)
basic_string_view <CharT,Traits> rhs ) noexcept;
template< class CharT, class Traits >
constexpr bool operator>( basic_string_view <CharT,Traits> lhs, (5) (since C++17)
basic_string_view <CharT,Traits> rhs ) noexcept;
template< class CharT, class Traits >
constexpr bool operator>=( basic_string_view <CharT,Traits> lhs, (6) (since C++17)
basic_string_view <CharT,Traits> rhs ) noexcept;
Compares two views.
All comparisons are done via the compare() member function (which itself is defined in terms of Traits::compare()):
* Two views are equal if both the size of lhs and rhs are equal and each character in lhs has an equivalent character in rhs at the same position.
* The ordering comparisons are done lexicographically -- the comparison is performed by a function equivalent to std::lexicographical_compare.
The implementation shall provide sufficient additional constexpr and noexcept overloads of these functions so that a basic_string_view<CharT,Traits> object sv may be compared to another object t with an implicit conversion to basic_string_view<CharT,Traits>, with semantics identical to comparing sv and basic_string_view<CharT,Traits>(t).
Parameters
lhs, rhs - views to compare
Return value
true if the corresponding comparison holds, false otherwise.
Complexity
Linear in the size of the views.
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